Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1971__195_162225, author = {Akio Hattori}, title = {Genera of {Ramified} {Coverings.}}, journal = {Mathematische Annalen}, pages = {208--226}, publisher = {mathdoc}, volume = {195}, year = {1971}, zbl = {0226.57017}, url = {http://geodesic.mathdoc.fr/item/MAN_1971__195_162225/} }
Akio Hattori. Genera of Ramified Coverings.. Mathematische Annalen, Tome 195 (1971), pp. 208-226. http://geodesic.mathdoc.fr/item/MAN_1971__195_162225/